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[net-next,5/6] net: ipa: change stop channel retry delay

Message ID 20210113171532.19248-6-elder@linaro.org
State New
Headers show
Series net: ipa: GSI interrupt updates | expand

Commit Message

Alex Elder Jan. 13, 2021, 5:15 p.m. UTC 
If a GSI stop channel command leaves the channel in STOP_IN_PROC
state, we retry the stop command after a 1-2 millisecond delay.

I have been told that a 3-5 millisecond delay is a better choice.

Fixes: 650d1603825d8 ("soc: qcom: ipa: the generic software interface")
Signed-off-by: Alex Elder <elder@linaro.org>

---
 drivers/net/ipa/gsi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.20.1
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Patch

diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c
index 4de769166978b..5c163f9c0ea7b 100644
--- a/drivers/net/ipa/gsi.c
+++ b/drivers/net/ipa/gsi.c
@@ -903,7 +903,7 @@  int gsi_channel_stop(struct gsi *gsi, u32 channel_id)
 		ret = gsi_channel_stop_command(channel);
 		if (ret != -EAGAIN)
 			break;
-		usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
+		usleep_range(3 * USEC_PER_MSEC, 5 * USEC_PER_MSEC);
 	} while (retries--);
 
 	mutex_unlock(&gsi->mutex);